单项选择题
The amount and accuracy of the information provided on the different charts（）considerably.
A.varies
B.maintains
C.Shifts
D.assembles
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相关考题
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单项选择题
When you read the sailing directions, you should notice that this is one of a series of publications produced by the（）which should be consulted by users of Admiralty Charts.
A.UK Hydrographic Office
B.IMO
C.International Hydrographic Organization
D.International Association of Classification society -
单项选择题
When are you allowed to throw plastic garbage overboard?（）
A.Being mroe than 25 miles from shore
B.Only at night when it‟s dark
C.Being more than 6 miles from shore
D.Never -
单项选择题
Which kind of fog is also named as ground fog?（）
A.Advection
B.Radiation fog
C.frontal fog
D.Steam fog
